's questions are as easy as the ones his students have been asking him. please welcome sal olivo. hey, sal. >> hi, thank you. nice to meet you, meredith. >> nice to see you. >> thank you. >> so what kinds of questions are your students asking you?nt, >> i had a student ask me, "mr. olivo, mount rushmore, is that natural or did somebody have to create it?" as if it was discovered. >> really? >> yeah, i had one guy who really wanted to know about the day that the world went to color, like it was always in black and white, and then one day, it was in color. he wanted to hear about that day. >> how old are your students? >> high school. >> high school? >> yeah, unfortunately. >> oh, my gosh. you've got your job cut out for you, don't you? wow. well, what kind of teacher are you? >> history. social studies. >> history. okay, well, we often have history questions on this show, so hopefully you'll get some of those. your wife is here, rebecca, your brother tom, and grandma lucy is here as well. so nice to see you all. [applause] all right, sal, let's see the money in your round 1. >> all right. >